SuppScoreLab
SuppScoreLab
EVIDENCE-BASED SUPPLEMENT SCORING
5.6/10
AVERAGE

Confidence: 63%

Optimum Nutrition Opti-Men, Vitamin C, Zinc and Vitamin D, E, B12 for Immune Support Mens Daily Multivitamin Supplement, 150 Count (Packaging May Vary)

Optimum Nutrition Opti-Men, Vitamin C, Zinc and Vitamin D, E, B12 for Immune Support Mens Daily Multivitamin Supplement (Packaging May Vary)

B00K2RJAR0

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Decision summary

CONSIDERAVERAGE

Not a strong option overall. The product is materially held back by weaker formulation coherence.

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Best for

Buyers comparing price and availability and okay with a middle-of-the-pack option.

Consider another option if

You prefer fully transparent formulas over blends and ambiguous labeling.

Score breakdown

Tap a module to see what it measures. A 0 can reflect missing disclosure, not just a negative result.

Dosage quality

4.9/10

Dosing looks weaker than ideal

Checks whether labeled ingredient amounts fall within clinically studied ranges (not just regulatory minimums). Low/0 can reflect under-dosing or missing amounts (e.g., proprietary blends).

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Immune health

Ingredient guide

Zinc

Multi-ingredient formulation analysis

Dose 4.9/10 · Bioavailability 2.7/10 · Coherence 0/10

Dose quality suggests a diluted formulation.

Ingredient form quality suggests suboptimal ingredient forms.

A proprietary blend limits independent dose verification.

This is a multi-ingredient product. The score reflects formulation quality, not efficacy for a specific health goal.

Score summary

Vitamin-d: high-bioavailability form declared (Cholecalciferol (D3)). The main limitation is that proprietary blend prevents independent dose verification.

Strengths

Vitamin-d: high-bioavailability form declared (Cholecalciferol (D3))
Iodine: dose within clinically studied range (evidence A)
Zinc: dose within clinically studied range (evidence A)

Weaknesses

Proprietary blend prevents independent dose verification
Vitamin-d: below clinically studied range
Formula coherence is weak: diluted, decorative or overly complex

Final verdict

Not a strong option overall. The product is materially held back by weaker formulation coherence.

Ingredient Analysis & Evidence

A closer look at the main ingredients, how they influence the score, and the supporting evidence when available. Tap any ingredient to expand.

ℹ Evidence is strong, but dose is below the optimal range

This is a limiting factor: Dose is below the ranges usually used for stronger effects. The declared form is acceptable, but not among the best-absorbed options.

Scientific evidence

Meta-analysis

Hemila & Chalker Cochrane review vitamin C and common cold duration

Cochrane Database of Systematic Reviews • 2013

PMID: 23440782.0

RCT

Padayatty et al. RCT on vitamin C antioxidant capacity in healthy adults

Journal of the American College of Nutrition • 2001

PMID: 11684527.0

⚠ Strong evidence exists, but dose may be too low to be effective

A clear drag on the formula: Dose is likely below clinically useful levels. The declared form supports strong absorption.

Scientific evidence

Meta-analysis

Martineau et al. meta-analysis vitamin D supplementation and respiratory infections

BMJ • 2017

PMID: 26864360.0

Meta-analysis

Bischoff-Ferrari et al. meta-analysis vitamin D fracture prevention

BMJ • 2009

PMID: 20198382.0

ℹ Dose is below the optimal range with moderate supporting evidence

This is a limiting factor: Dose is below the ranges usually used for stronger effects. The declared form supports strong absorption.

Scientific evidence

Meta-analysis

Balk et al. systematic review chromium picolinate and glycemic control

Diabetes Technology & Therapeutics • 2007

PMID: 17519436.0

ℹ Dose is within established clinical ranges, but lacks direct studies

Adequate, but not a key strength: Dose is directionally useful, but not a standout strength.

Clinical dosing guidance

Based on established dosing ranges used in clinical practice.

Min effective: 1 mgOptimal: 5 mgUpper: 100 mgGrade: B

✔ Clinically effective dose with moderate supporting evidence

One of the weaker points: Dose is higher than typically recommended ranges. The declared form is acceptable, but not among the best-absorbed options.

Scientific evidence

RCT

Bryan et al. RCT on B vitamins and cognitive function in older adults

American Journal of Clinical Nutrition • 2002

PMID: 16920179.0

✔ Clinically effective dose with strong supporting evidence

Dose is well positioned: Dose is strong and within effective ranges.

Scientific evidence

Systematic review

Zimmermann et al. review on iodine deficiency and thyroid function in human populations

Endocrine Reviews • 2009

PMID: 19357404.0

Cohort

Bath et al. maternal iodine status and offspring cognitive outcomes (ALSPAC cohort)

Lancet • 2013

PMID: 23683674.0

Optimum Nutrition Opti-Men, Vitamin C, Zinc and Vitamin D, E, B12 for Immune Support Mens Daily Multivitamin Supplement, 150 Count (Packaging May Vary)

Optimum Nutrition Opti-Men, Vitamin C, Zinc and Vitamin D, E, B12 for Immune Support Mens Daily Multivitamin Supplement, 150 Count (Packaging May Vary)

5.6/10
View on Amazon →

Warnings & notes

Important label or formulation details that may affect how this product should be interpreted.

i

Proprietary blend limits dose transparency

Exact ingredient amounts cannot be verified clearly.

Info
!

Vitamin D dose looks below clinically effective levels

Declared amount falls below ranges used in human trials.

Warning
⚠

Formula design looks less coherent than stronger alternatives

The formulation appears less focused than better-built options.

Note

Methodology

Read our methodology overview to understand how SuppScoreLab combines multiple scientific dimensions into one practical score.

View methodology →

This evaluation is based on the product label and declared Supplement Facts available at review time. It does not verify laboratory-tested composition, purity, or batch-level quality. This content is educational and not medical advice. Consult a qualified healthcare professional for personal health decisions. Affiliate disclosure: SuppScoreLab may earn a commission from qualifying Amazon links.

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